Until now filling the burn-folder was a pain in nero.
When it was overfilled one had to remove file by file until the max. was reached.
Is there an option or solution(maybe in nero) where one can see which files most be removed?
Is there a split-tool? splitting a larger folder into dvd-sizes. thanks

You can use HJ SPIT, WIN RAR, 7z, to spilt your large folders. Win Rar and HJ Split are recommended by me as they can split your folder quickly and you can choose the size of the parts yourself.
I hope it helps.